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Silicone Rubber Sponge Strips

Not Available to Buy Online - Please contact us for more information.

 +44 (0) 1420 474123
 sales@polymax.co.uk

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Quick Overview

Silicone sponge strip offers many of the performance benefits associated with solid silicone, but in a softer and more compliant form.

Polymax silicone expanded closed cell sponge strips are available in various widths and thicknesses and are available in a 10 metre roll or bought in minimum lengths and multiples of 5 metres. The strips are slit from sheet but are also available as an extrusion (skinned)

Article No. Thickness (mm) Width (mm) Roll Length (m)
3010100 22010
3010101 3510
3010102 31010
3010103 31510
3010105 32510
3010106 33010
3010107 33510
3010108 4510
3010109 41010
3010110 41510
3010111 42010
3010112 5510
3010114 5810
3010115 51010
3010116 51510
3010117 52010
3010118 52510
3010119 53010
3010120 54010
3010121 55010
3010122 6810
3010124 61210
3010125 61510
3010126 62010
3010127 62510
3010128 62810
3010129 64010
3010130 8810
3010131 81010
3010132 81510
3010134 82010
3010135 101010
3010136 101210
3010137 101510
3010138 101610
3010139 102010
3010140 102510
3010141 103010
3010142 103510
3010143 104010
3010144 104510
3010145 105010
3010146 121210
3010147 121510
3010148 122010
3010149 122510
3010150 123010
3010151 123510
3010152 124010
3010153 121610
3010154 151510
3010155 152010
3010156 152510
3010157 153010
3010158 154010
3010160 202010
3010161 202510
3010162 203010
3010163 204010
3010164 205010
3010165 252510
3010166 253010
3010168 255010
3010169 303010
3010170 304010
3010171 353510
3010172 404010

Details

Expanded closed cell, silicone sponge strip offers many of the performance benefits associated with solid silicone, but in a softer and more compliant form. Silicone Sponge Rubber Sheeting and strips from Polymax Silicone range are available in various sizes, densities, colours and with self adhesive backing (SAB) on request.

Standard strips are available in an off-white (non-SAB) 250Kg.m³ density.

Production - Most commercially available silicone sponge products are made from gum based polydimethylsiloxane (PMDS). The polymer is chemically expanded when heat cured to create the closed cell sponge structure. Closed cell means that the cells are non-interconnecting; therefore they do not allow water to wick through the sponge. Generally, silicone sponges have superior mechanical properties and are considered to have a complete closed cell structure. Expanded closed cell silicone sponge offers many of performance benefits of solid silicone in a softer and more compliant form.

Key Benefits of Closed Cell Silicone Sponge

  • Wide operating temperature - silicone sponge has a temperature range of -73°C to 200°C
  • Water sealing – the closed cell structure allows for good water sealing with relatively low compressive forces.
  • Compression set resistance – silicone offers excellent compression set resistance (ability to rebound to original thickness), especially at higher temperatures, compared to most rubber material. Low compression set silicone sponges are available for even better performance than general purpose grades.
  • UV and ozone resistance – silicone products have excellent UV and ozone resistance due in part to their inorganic backbone. This provides long term performance.
  • Rugged – when silicone is required, silicone sponge parts are more durable than some other products openly available.
  • Outdoor gasketing – considering all the above benefits, silicone sponge is a good material choice for outdoor environments, from the arctic to the desert.

 Typical or common uses of silicone sponge are namely gaskets, cushioning and sealing, but have been known to be used in many other applications. Other colours are available.

Please ask an advisor if unsure

Additional Information

Colour White
Material Silicone (VMQ)
Maximum Temperature (°C) 200
Minimum Temperature (°C) -60
Elongation at break (%) 200
*Dimensions can vary, they are typical only.

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